What Is Acceptable DB Loss For Single Mode Fiber?

What Is Acceptable DB Loss For Single Mode Fiber? For singlemode fiber, the loss is about 0.5 dB per km for 1310 nm sources, 0.4 dB per km for 1550 nm. What is an acceptable amount of insertion loss? While TIA standards specify a maximum insertion loss for connectors of 0.75dB, most manufacturers’ connectors have